|Forum topic by lightweightladylefty||posted 02-05-2010 06:36 PM||10179 views||0 times favorited||12 replies|
02-05-2010 06:36 PM
I’m in the process of recycling lab cabinets from university surplus into a workbench that will be the outfeed table for my saw. This is a very low budget bench and I’d like to keep it that way.
I purchased 1-1/8” MDF for the top ($3.00 a sheet). The one that I cut for this bench is rather dirty on one side and it is warped. In the picture below, I can eliminate the warp by clamping it with the wrong side up since I can then pull the edges down. However, I don’t know how to eliminate it when I turn it over (with the clean side up) and the hump is in the middle. (The top is approximately 32” x 57”.)
I had thoughts of leaving it clamped upside down and covering it with a damp towel, letting it all dry out again, and unclamping it. Has anyone ever tried that, or would I ruin the MDF?
Because there are drawers directly below the top (as seen in the photo below), I don’t know what options I would have to force the center down.
I thought about using curved cauls across the top and clamping the edges but I don’t know if I can get enough pressure on the center to make it flat. And would it stay flat without tearing out screws if I attached it from the underside (inside the drawers)? (I would have to attach a bracket to the underside of the top and then drive the screws into the dividers between the drawers.) Or should I just drive screws through from the top down and countersink them?
Does anyone have ideas? I’m open to any suggestions.
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